The music icon - who has sold more than 250 million records around the globe - admits he still dreams of topping the US charts, which is one of the few things he has yet to achieve in an illustrious career spanning six decades.

He said: ''It's still feasible that at my age, I could find a niche in America. Not only am I still alive, I can still do it.''

He added of missing out on a US number one: ''How did I miss this?''

Meanwhile, Cliff would love to collaborate with top British boy band One Direction, who have cracked America with three number one albums.

Appearing on ITV's 'Good Morning Britain', he said: ''If they get through, if they're still here in 10 years' time, and want to work, they're good singers!''

The 'Living Doll' singer staged a free concert in New York over the weekend for his US fans after Irish star Morrissey cancelled their joint gig due to poor health.

A note posted on his website said: ''Cliff and the CRO (Cliff Richard Organisation) are very disappointed to confirm that Morrissey has just cancelled the remaining dates on his tour, including the Barclay Center, Brooklyn, NYC on 21st June 2014 where Cliff was to perform as Morrissey's Special Guest.

''The CRO apologies for the inconvenience to fans and wishes Morrissey a full and speedy recovery.''